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Area Codes 410, 443, And 667
Area codes 410, 443, and 667 are telephone area codes serving the eastern half of the U.S. state of Maryland, including the Baltimore metropolitan area and the Eastern Shore. The 410 area code is the original area code, while the 443 and 667 codes are overlay codes. 443 and 667 were primarily used with cellular phones and competitive local exchange carriers such as Comcast or Cavalier Telephone when introduced but have since become universal in their carrier availability. History Before these area codes were created, all of Maryland had been served by 301 since the institution of area codes in 1947, even though the state is home to two very large metropolitan areas—Baltimore and the Maryland suburbs of Washington, D.C. (area code 202). This made Maryland one of the most-populous states to be served by a single area code. However, by the late 1980s, 301 was on the verge of exhaustion due to the rapid growth of the Baltimore and Washington suburbs, as well as the proliferation ...
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Area Code 410
__NOTOC__ Year 410 ( CDX) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year after the Consulship of Honorius and Theodosius (or, less frequently, year 1163 ''Ab urbe condita''). The denomination 410 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Spring – Constantine III crosses the Alps into Liguria (Northern Italy), but retreats to Gaul after Gerontius revolts in Spain against his son Constans II. * Raiders from Ireland, such as the Uí Liatháin and Laigin, harry the coasts of Wales. They plunder towns and capture slaves but later colonise large areas of what is called ''Gwynedd'', in particular Llŷn, the coasts of Arllechwedd, Arfon and the Isle of Mona (approximate date). * Flavius Constantius, Roman general and politician, is promot ...
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Potomac River
The Potomac River () drains the Mid-Atlantic United States, flowing from the Potomac Highlands into Chesapeake Bay. It is long,U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map. Retrieved August 15, 2011 with a drainage area of 14,700 square miles (38,000 km2), and is the fourth-largest river along the East Coast of the United States and the 21st-largest in the United States. Over 5 million people live within its watershed. The river forms part of the borders between Maryland and Washington, D.C. on the left descending bank and between West Virginia and Virginia on the right descending bank. Except for a small portion of its headwaters in West Virginia, the North Branch Potomac River is considered part of Maryland to the low-water mark on the opposite bank. The South Branch Potomac River lies completely within the state of West Virginia except for its headwaters, which lie in Virginia. Course The Potomac River runs ...
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Ten-digit Dialing
Ten-digit dialing is a telephone dialing procedure in the countries and territories that are members of the North American Numbering Plan (NANP). It is the practice of including the area code of a telephone number when dialing to initiate a telephone call. When necessary, the ten-digit number may be prefixed with the trunk code ''1'', which is referred to as ''1+10-digit dialing'' or ''national format''. History The implementation and expansion of the North American Numbering Plan between 1947 and 1992 preserved a long-standing practice in the United States and Canada that callers should only need to dial the local seven-digit telephone number when placing a call within the caller's exchange area or within the home numbering plan area (NPA). In seven-digit dialing. callers dialed the three-digit central office code and the four-digit station number of the telephone subscriber to reach in the same numbering plan area. Dialing of an area code before the telephone number, referred to ...
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New Windsor, Maryland
New Windsor is a town in Carroll County, Maryland, United States. The population was 1,398 at the 2020 census. It is located west of Westminster on Maryland Route 31. History New Windsor was platted in 1797 and originally named Sulphur Springs, for a local spring with water believed to have medicinal properties. It was given its current name in the early 19th century, possibly after its English namesake. The town was originally founded to service and profit from junctures of wagon trails in the area, but would later become a destination in and of itself because of the sulfur springs. To capitalize from the visitors to the springs, the town would become home to a bathhouse and numerous inns, including the 10,000+ square foot Dielman Inn. New Windsor became home to Calvert College in 1850, to later become the New Windsor College in 1872, and then finally a campus of Blue Ridge College in 1912 until 1937. In the late 1800s, St. Thomas Catholic Church stood at Calvert College. Du ...
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Union Bridge, Maryland
Union Bridge is a town in Carroll County, Maryland, United States. The population was 936 at the 2020 census. Much of the town was added to the National Register of Historic Places as the Union Bridge Historic District in 1994. Geography Union Bridge is located at (39.568550, -77.177618). According to the United States Census Bureau, the town has a total area of , of which is land and is water. Transportation The primary method of travel to and from Union Bridge is by road. The only primary highway serving the town is Maryland Route 75, which follows Green Valley Road and Main Street through Union Bridge. From Union Bridge, MD 75 connects southward to Libertytown and New Market, and turns eastward to New Windsor. Demographics 2010 census As of the census of 2010, there were 975 people, 394 households, and 251 families living in the town. The population density was . There were 429 housing units at an average density of . The racial makeup of the town was 91.7% White, 5 ...
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Mount Airy, Maryland
Mount Airy is a town in Carroll and Frederick counties in the U.S. state of Maryland. It is part of both the Washington Metropolitan Area and Baltimore Metropolitan Area. As of the 2010 census the population was 9,288. Outside the town limits, the surrounding countryside is colloquially referred to as Mount Airy or the "Four-County Area" by locals. The "Four-County Area" derives its name from the fact that the "Mount Airy" mailing area encompasses portions of Frederick, Carroll, Montgomery, and Howard counties. History The community was first settled in 1830 and continued to develop throughout the decade, beginning with the construction of house settlements along Parr's Ridge. A man named Henry Bussard built the first of these houses. This town was known for its train station on the Baltimore and Ohio Railroad (B&O) at Parr's Ridge. The railroad ran from Baltimore to Frederick, cities to the east and west, respectively, of Mt. Airy. Following 1830, the town received its officia ...
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Fort Meade
Fort George G. Meade is a United States Army installation located in Maryland, that includes the Defense Information School, the Defense Media Activity, the United States Army Field Band, and the headquarters of United States Cyber Command, the National Security Agency, the Defense Courier Service, Defense Information Systems Agency headquarters, and the U.S. Navy's Cryptologic Warfare Group Six. It is named for George G. Meade, a Union general from the U.S. Civil War, who served as commander of the Army of the Potomac. The fort's smaller census-designated place includes support facilities such as schools, housing, and the offices of the Military Intelligence Civilian Excepted Career Program (MICECP). History Initially called Camp Annapolis Junction, the post was opened as "Camp Admiral" in 1917 on acquired for a training camp. The post was called Camp Meade Cantonment by 1918, Camp Franklin Signal Corps school was located there and in 1919, the Camp Benning tank school—for ...
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Upper Marlboro, Maryland
Upper Marlboro, officially the Town of Upper Marlboro, is the seat of Prince George's County, Maryland. Aso of the 2020 census, the population was 652. although Greater Upper Marlboro is many times larger. Etymology Upper Marlboro was established in 1706 as "Marlborough Town", after John Churchill, 1st Duke of Marlborough. In 1744, the town was renamed to "Upper Marlborough". In the late 19th century, the town's name changed from Upper Marlborough to Upper Marlboro. The name change is linked to a postal clerk who felt that the last three letters, "ugh", did not properly fit on the rubber stamps being used at the time. By 1893, postal guides were referring to the town as Upper Marlboro and the name stuck, despite a proposed ballot to have it changed back in 1968. History The area of Upper Marlboro was first settled around 1695. It was named after John Churchill, 1st Duke of Marlborough, an ancestor of Winston Churchill. The land, which was to become the town, was part of sev ...
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Laurel, Maryland
Laurel is a city in Maryland, United States, located midway between Washington and Baltimore on the banks of the Patuxent River. While the city limits are entirely in northern Prince George's County, outlying developments extend into Anne Arundel, Montgomery and Howard counties. Founded as a mill town in the early 19th century, Laurel expanded local industry and was later able to become an early commuter town for Washington and Baltimore workers following the arrival of the Baltimore and Ohio Railroad in 1835. Largely residential today, the city maintains a historic district centered on its Main Street, highlighting its industrial past. The Department of Defense is a prominent presence in the Laurel area today, with the Fort Meade Army base, the NSA and Johns Hopkins' Applied Physics Laboratory all located nearby. Laurel Park, a thoroughbred horse racetrack, is located just outside the city limits. History Natural history Many dinosaur fossils from the Cretaceous Era ar ...
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Frederick County, Maryland
Frederick County is located in the northern part of the U.S. state of Maryland. At the 2020 U.S. Census, the population was 271,717. The county seat is Frederick. Frederick County is included in the Washington-Arlington-Alexandria, DC-VA-MD-WV Metropolitan Statistical Area. Like other outlying sections of the Washington metropolitan area, Frederick County has experienced a rapid population increase in recent years. It borders the southern border of Pennsylvania and the northeastern border of Virginia. The county is the location of Catoctin Mountain Park (encompassing the presidential retreat Camp David) and the U.S. Army's Fort Detrick. Etymology The namesake of Frederick County and its county seat is unknown, but it was probably either Frederick, Prince of Wales, or Frederick Calvert, 6th Baron Baltimore. History Frederick County was created in 1748 by the Province of Maryland from parts of Prince George's County and Baltimore County. In 1776, following US independence, F ...
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Howard County, Maryland
Howard County is located in the U.S. state of Maryland. As of the 2010 census, the population was 287,085. As of the 2020 census its population rose to 328,200. Its county seat is Ellicott City. Howard County is included in the Baltimore-Columbia-Towson, MD Metropolitan Statistical Area, which is also part of the larger Washington-Baltimore-Arlington, DC-MD-VA-WV-PA Combined Statistical Area. Recent south county development has led to some realignment towards the Washington, D.C. media and employment markets. The county is home to Columbia, a major planned community of approximately 100,000 founded in 1967. Howard County is frequently cited for its affluence, quality of life, and excellent schools. Its estimated 2016 median household income of $120,194 raised it to the second-highest median household income of any U.S. county. Many of the most affluent communities in the area, such as Clarksville, Dayton, Glenelg, Glenwood, and West Friendship, are located along the ...
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Carroll County, Maryland
Carroll County is located in the U.S. state of Maryland. As of the 2020 census, the population was 172,891. Its county seat is Westminster. Carroll County is included in the Baltimore-Columbia-Towson, MD Metropolitan Statistical Area, which is also included in the Washington-Baltimore-Arlington, DC-MD-VA-WV-PA Combined Statistical Area. While predominantly rural, the county has become increasingly suburban in recent years. History Prior to European colonization, the land that now makes up Carroll County was inhabited by Native Americans for thousands of years. Numerous Native American archaeological sites and archeological artifacts have been located across the county. Native Americans used the land for permanent settlements, seasonal visits and journeys, and as hunting grounds. At the time of European colonization, the Susquehannock and the Lenape were the predominant indigenous nations in the area. What is now the city of Manchester was inhabited by the Susquehannock nat ...
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